Home / 69,783,311.08-104,686,337.04-20,604,135.76

Finding the Fourth Proportional to 69,783,311.08, 104,686,337.04 and 20,604,135.76

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Solution

The fourth proportional to 69,783,311.08, 104,686,337.04 and 20,604,135.76 is: 30,909,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,783,311.08 : 104,686,337.04 = 20,604,135.76 : x
  2. Step 2: Convert to fraction form
    69,783,311.08/104,686,337.04 = 20,604,135.76/x
  3. Step 3: Cross multiply
    69,783,311.08x = 104,686,337.04 × 20,604,135.76
  4. Step 4: Simplify right side
    69,783,311.08x = 2,156,971,500,589,276.75
  5. Step 5: Solve for x
    x = 2,156,971,500,589,276.75/69,783,311.08
  6. Step 6: Final answer
    x = 30,909,560.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.